Key Combination for BIOS Setup Opening

A producer of a computer and motherboard

Key Combination

Acer Ctrl+Alt+Esc
AST, Advantage, Award, Tandon Ctrl+Alt+Esc
Compaq F10
Dell F1 or Del.
Dells Ctrl+Alt+Enter
Gateway F1
Hewlett Packard F1
IBM (outdated models) Rollover of left and right mouse buttons
IBM (models with PS/2) Ins, Ctrl+Alt+?, Ctrl+Ins

(when a pointer is in the left upper corner)

Aptiva F1
Fortiva Ctrl+Alt+A or Ctrl+Alt+S
Packard Bell F1 or F2
Phoenix Ctrl+S, Ctrl+Alt+S, Ctrl+Alt+Ins
Sharp Laptop F2
Sony F3, then F2 or F1
Tandon Esc (directly when the power is turned on) or Ctrl+Shift+Esc
Toshiba Esc, and F1 in older models
Olivetti Shift+Ctrl+Alt+Del on additional keyboard
Miscellaneous Crtl+Esc, Crtl+Alt+ “+”
Zenith Ctrl+Alt+Ins

If everything was done correctly, BIOS Setup window will open, and if something is incorrect, a loading will begin; you can interrupt it by pressing a combination Ctr+Alt+Delete and a key Reset on a system unit.


If you work in DOS, you can open BIOS Setup without the preliminary computer restarting. You should only press one of the following key combinations: Ctrl+Alt+Esc, Ctrl+Alt+Enter, Ctrl+Alt+A or Ctrl+Alt+S. This method is correct for most of computers and cannot be performed in other operating systems, for example Windows, Linux and other. Such key combination cannot also be used in DOS emulator.

As a rule, BIOS SETUP window is a menu with a list of sections that include commands for parameter control. Some BIOS support operation with a mouse and look like a set of files with stored commands.